decompiler for EX4 EA from metatrader ex4 to mq4

I need a decompiler for EX4 EA from metatrader The program should be Windows based running on XP or Vista and will simply have a GUI that asks for the .ex4 file location and outputs the decompiled .mq4 file that can be edited in MetaEditor 4 and recompiled. The program must be able to work offline with no internet or network access. must be simply to use and effective. if you have something already done, please submit some sample output o some screeshot Information about MetaTrader MQL4 language can be found at Check out [login to view URL] MetaTrader can be downloaded from [login to view URL]